Good points, all, Lou. Plus, it was a handy way to check conditions on 40
meters. But as you say, time marches on and CHU documents it wherever it
transmits. Lou
----- Original Message -----
From: "Louis Kim Kline" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 11, 2008 11:12 PM
Subject: Re: Fw: [NYDXA-List] CHU Changes 7Mhz Freq On Jan 1, 2009]
> Hi.
>
> Of course, the downside to all of this is that CHU was the one
> time/frequency standard station that fell within the coverage of the older
> ham band receivers and transceivers. At 7850 kHz, that will no longer be
> true. Too bad they couldn't have dropped to just below the 7 MHz band,
> but
> that probably would not have fit the allocation tables. Oh well, time
> marches on, and probably most of us are using equipment with general
> coverage receivers anyway.
>
> 73, de Lou K2LKK
>
>
>
> At 11:27 PM 12/10/2008 -0500, you wrote:
>>This is from Mike Agner (KA3JJZ) on RadioReference.com yesterday:
>>
>>CHU 7 mhz freq to move Jan 1
>> From Raymond Pelletier, Glenn Hauser and the NASWA Yahoo group;
>>============================================
>>Frequency and Time
>>Institute for National Measurement Standards
>>National Research Council Canada
>>M-36, room 1026
>>1200 Montreal Road
>>Ottawa, Canada K1A 0R6
>>Tel: (613) 993-3430
>>Fax: (613) 952-1394
>>raymond.pelletier @ nrc-cnrc.gc.ca
>>Government of Canada
>>========================================
>>CHANGE YOUR SHORTWAVE RADIO DIAL
>>
>>After seventy years of broadcasting Canada's official time, NRC's
>>shortwave station CHU will move the transmission frequency for the 7335
>>kHz
>>transmitter to 7850 kHz. The change will occur on 01 January 2009 at 0000
>>UTC.
>>
>>CHU is a part of NRC's system for disseminating official time throughout
>>Canada, broadcasting 24 hours a day from a location approximately 20 km
>>south-west of Ottawa. Listeners hear tones to mark the seconds, voice to
>>announce the time in French and English, and digital data to set
>>computers.
>>
>>The atomic clocks at CHU are part of the ensemble of clocks in the time
>>and
>>frequency research laboratories in Ottawa, at the National Research
>>Council
>>Canada. The NRC clocks are used in conjunction with clocks in the time
>>laboratories of other countries to construct the internationally accepted
>>scale of time, UTC (Coordinated Universal Time), which is now the
>>reference
>>for official time used by all countries. UTC is the modern implementation
>>of Greenwich Mean Time.
>>
>>"Coincidentally, this frequency change comes at a time when NRC is
>>investing resources to refurbish the aging transmitters at CHU in order to
>>provide clear, dependable shortwave services as part of NRC's mandate to
>>disseminate time to all Canadians." said Ray Pelletier, Technical Officer
>>at the NRC-Institute for National Measurement Standards, who oversees the
>>CHU facility "The shortwave time service is especially beneficial for
>>those
>>in remote locations where there is limited access to internet and
>>telephone
>>communication. CHU also provides a back up against failure of other
>>services."
>>
>>In April 2007, the International Telecommunications Union re-allocated the
>>7300-7350 KHz band from a fixed service to a broadcasting service. Since
>>then, interference on the 7335 KHz frequency has come from many
>>information
>>broadcasters around the world.
>>
>>CHU listeners in Canada and around the world who have for so long
>>considered the 7335 kHz frequency exclusively for time signals, are very
>>vocal about this interference. We have heard from amateur radio operators,
>>watchmakers, astronomers, and navigators who use the tones and voice
>>signals. As well, comments were received from those who use the carrier as
>>a calibration source at a distance for their equipment.
>>
>>To give notice to users, CHU will broadcast an announcement in both
>>English and French. More information can be found at
>>http://www.nrc-cnrc.gc.ca/main_e.html and
>>http://www.nrc-cnrc.gc.ca/main_f.html
>>
>>Comments about the CHU change can be sent by e-mail to
>>radio.chu@...
>>(Raymond Pelletier, CHU, DX LISTENING DIGEST)
>>
>>As of Dec 9, nothing at above site about 7850. This NRC website also
>>mentions a leap second to be added at the end of 2008y:
>>http://time5.nrc.ca/timefreq/bulletin_tf-b.html (gh)
>>
>>Monitored around 1430 UT Dec 9 on 7335, no announcements being heard yet
>>about the frequency change or the leap second.
>>
>>And here`s another website with the history of CHU, etc.:
>>http://inms-ienm.nrc-cnrc.gc.ca/time_services/shortwave_broadcasts_e.html
>>(Glenn Hauser, DX LISTENING DIGEST)
>>__________________
>>links editor,Capitol Hill Monitors Utility Monitoring Central
>>Wiki Administrator, HF Forum moderator, RadioReference
>>
>>
>>--
>>Charles J. Hargrove - N2NOV
>>NYC ARECS/RACES Citywide Radio Officer/Skywarn Coord.
>>
>>NYC-ARECS/RACES Net Mon. @ 8:30PM 441.100/136.5 PL & 145.230/114.8 PL
>>http://www.nyc-arecs.org and http://www.nyc-races.org
>>
>>NYDXA SWL & Scanner Net Wed. @ 9PM 441.100/136.5 PL & 145.230/114.8 PL
>>http://www.n2nov.net
>>
>>"Information is the oxygen of the modern age. It seeps through
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>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail: [log in to unmask]
> Work e-mail: [log in to unmask]
> Work Telephone: (585) 697-5740
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